Transthyretin transports vitamin A (retinol) and a hormone called thyroxine throughout the body. To transport retinol and thyroxine, four transthyretin proteins must be attached (bound) to each other to form a four-protein unit (tetramer). Transthyretin is produced primarily in the liver.
All lab personnel handling sodium azide must wear a lab coat. With this, safety glasses or splash goggles. and a face shield must be worn, dependent on the procedure being performed. Two pairs of nitrile gloves.
Another thing to remember (for testing purposes) is that you don't necessarily need gloves or gown for airborne (not sure about droplet...) precautions unless it would be otherwise warranted per universal precautions. # 1 5.